Step 1 :First, multiply both sides of the equation by -3 to get rid of the fraction: \(5x - 14 = 21\)
Step 2 :Next, add 14 to both sides of the equation to isolate the term with x: \(5x = 35\)
Step 3 :Finally, divide both sides of the equation by 5 to solve for x: \(x = \boxed{7}\)